package demo2;

/**
 * ClassName Shape
 * Description TODO
 * Author Yanyan
 * Date 2025/11/12 21:46
 * Version 1.0
 */
public abstract class Shape {
    //抽象类中可以正常定义非抽象类的变量、方法等
    /*public int age;

    public void test(){

    }
    public int a;
    public Shape(int a ) {

    }*/

    public abstract void draw();
}
